JP2805433B2 - Conveyor frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor frame widely used as a transport device.

[0002]

2. Description of the Related Art Conventionally, a conveyor which is widely used as a transfer device has a structure in which a conveyor frame is laid along a transfer path, and a support roller is rotatably mounted on an upper end of the conveyor frame at an appropriate interval. Support. A driving pulley and a driven pulley are arranged at a front end and a rear end of the conveyor frame, an endless belt is hung between the driving pulley and the driven pulley, and an intermediate portion of the endless belt is supported by the supporting rollers. I have. A motor provided with a speed reducer is mounted on the driving pulley side, the motor is rotated to move the endless belt in a certain direction, and to convey an object placed on the endless belt in a certain direction. I have to.

In the conveyor described above, generally, FIG.
The conveyor frame 50 shown in FIG.
The conveyor frame 50 is provided with a substrate portion 50a which stands upright in the vertical direction, and upper and lower plate portions 50b and 50c which are bent at right angles to upper and lower end surfaces of the substrate portion 50a. The substrate part 50a is erected with the upper plate part 50b facing outward, and the support roller 51 is rotatably installed between the erected left and right substrate parts 50a. A drive roller 52 and a driven roller (not shown) are provided below the support roller 51 located at both ends in the direction of disposition of the conveyor frame 50. The drive roller 52, the driven roller, and each support roller 51 are provided. Endless belt (not shown)
Is multiplied. The upper plate portion 50b is provided with a photoelectric sensor 53 for detecting the passage of an object to be conveyed, and a wiring 54 to the photoelectric sensor 53 and a pipe 55 to the conveyor are connected to the conveyor frame 50. They are collected and mounted in a wiring duct 56 provided inside.

As shown in FIG. 6, with respect to such a conveyor frame 50, the tip of the upper plate 50b is folded downward, and the tip of the lower plate 50c is folded upward to form a folded portion 50d. In some cases, the wiring 54 and the pipe 55 are stored in the folded portion 50d using a conveyor frame 50A having a substantially C-shaped cross section. However, the former configuration shown in FIG. 5 requires wiring and plumbing man-hours, and the latter configuration shown in FIG. 6 has a problem that a part of the wiring falls off and hangs down. As disclosed in the official gazette, attempts have been made to attach a conveyor frame cover to the upper and lower folded portions of the latter conveyor frame 50A.

[0005]

The above-mentioned cover for a conveyor frame is a long plate-shaped cover made of a light metal material and provided with engaging grooves at the upper and lower ends to be engaged with the folded portions. Since the upper engaging groove is fitted so as to attach the upper part, the cover is pushed up to engage the lower engaging groove with the folded part, so that the fitting is not easy with a long object. There is. Further, the mounting of the photoelectric sensor required for the conveyor has a complicated problem that the mounting must be performed through a dedicated bracket in a mounting groove provided in the cover, and a problem that the cost is high can be considered. The present invention has been made in view of the above circumstances, and has a simple structure to support a conveyor wiring and pipes, protect a photoelectric sensor protruding above the conveyor, and to shield a wiring part of the conveyor frame. It is intended to be provided at low cost.

[0006]

In order to achieve the above object, a conveyor frame according to the present invention is erected in parallel with each other at a predetermined interval along a conveying path of a conveyed object, and a plurality of supporting frames are provided on an upper portion thereof. A roller is rotatably supported, and a main frame having a C-shaped cross section provided with an opening formed on the outer side surface along the conveyance direction is engaged with an upper side and a lower side of the opening of the main frame. A plurality of stages having an upper engaging portion and a lower engaging portion, projecting into the opening between the upper and lower engaging portions, and placing and housing a part of a wiring or a pipe loaded in the main frame. And a first sub-frame having a shelf and being detachably disposed at an arbitrary interval along a transport direction of the opening. Also,
On the upper side of the main frame, a protrusion such as a photoelectric sensor provided above a transfer surface formed by the support roller,
It is characterized in that a cover portion for covering and protecting the projection such as the photoelectric sensor is covered by a second sub-frame having an integral body.

[0007]

In the conveyor frame of the present invention having the above-described structure, the wires and pipes used for the conveyor are separately accommodated in shelves provided in the plurality of first sub-frames engaged with the openings of the main frame. In addition, photoelectric sensors mounted on the main frame that detect the transfer of a conveyed product include:
A second sub-frame for covering and protecting this is provided so that the signal wires connected to the photoelectric sensor can be accommodated and wired along the conveying direction of the conveyor. This also makes maintenance easier. Further, since both the first sub-frame and the second sub-frame are detachably attached to the main frame via the engaging portions, the maintenance and management of the conveyor is also facilitated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. In FIG. 1, a conveyor frame 1 includes a pair of left and right main frames 2L and 2R standing upright along a conveyance path of a conveyed object.
L, 2R. The main frames 2L and 2R are frames formed of a rectangular iron plate member having a long cross section in the longitudinal direction. The main frames 2L and 2R are erected in parallel with a horizontal beam member (not shown) at regular intervals. This main frame 2L, 2
A rotatable support roller 4 whose both ends are pivotally supported by the main frames 2L and 2R is provided above the inner facing surface of the R.
Are arranged side by side at predetermined intervals along the transport direction of the main frames 2L, 2R. The upper surfaces of these support rollers 4 are flush with each other as a transport surface of the transported material, and the transport surface is the upper surface 2 of the main frames 2L and 2R.
It is provided higher than La and 2Ra so that even if a conveyed object is placed on the conveying surface, it does not come into contact with the upper sides 2La and 2Ra.

A drive pulley 5 for rotating the support roller 4 in the same direction is provided below one side of the main frames 2L and 2R in which a plurality of the support rollers 4 are provided. A belt (not shown) is stretched around 5 and several of the support rollers 4. The rotation of the driving pulley 5 is transmitted to the support roller 4 via the belt, and the support roller 4 is rotated in the same direction. Support roller 4
The upper conveyed object is conveyed in the same direction at the same speed. As shown in FIG. 2, the driving pulleys 5 are arranged one by one for several support rollers 4, and all of these driving pulleys 5 are driven to rotate at a constant speed in a constant direction by a known means. Is done.

The outer sides of the main frames 2L, 2R have the upper sides 2La, 2Ra and the lower sides 2Lb, 2Lb.
An opening 6 is provided between the main frames 2L and 2R in the longitudinal direction between the main frames 2L and 2R. Therefore, the cross-sectional shape of the main frames 2L and 2R is formed in a C-shape. I have. The opening 6 has a space in the width direction of each of the upper and lower sides from the outside to the inside, and the upper side 2L
a, 2Ra and 2Rc from the lower side, and 2Ld and 2Rd from the lower sides 2Lb and 2Rb. These folding portions 2Lc, 2
Rc and the tip of the folded-up portion 2Ld, 2Rd, the first
Sub-frame 3 is fitted. The first sub-frame 3 includes the folding-down sections 2Lc, 2Lc,
Rc has a rectangular outer plate 3a reaching the height direction of the opening 6 formed by the fold-up portions 2Ld and 2Rd, and a projecting portion inserted into the opening 6 on the back side surface of the outer plate 3a. 3
b, 3c are provided. Of the protruding portions 3b, 3c, a protruding portion 3c close to the lower sides 2Lb, 2Rb is provided with a lower engaging portion 7 having a width corresponding to the plate thickness of the folded portions 2Ld, 2Rd. The lower engaging portion 7 is provided with the projecting portion 3c.
Claw members protruding downward from the lower side surface of the outer plate 3a between the claw members and the outer plate 3a.
d is sandwiched and engaged.

The protruding portion 3b close to the upper sides 2La, 2Ra is provided slightly below the tips of the folded-down portions 2Lc, 2Rc, and protrudes upward above the outer plate 3a and the protruding portion 3b. Folding part 2L between engaging part 8
c, 2Rc. The upper engaging portion 8 side is first engaged with the folded-down portions 2Lc and 2Rc,
The lower engaging portion 7 is inserted into the folded-up portions 2Ld and 2Rd by pushing up the sub-frame 3 of the main frame 2 and the first sub-frame 3 is lowered.
Can be engaged.

The first sub-frame 3 formed as described above is a member having a slight width along the transport direction as shown in FIG. 2, and is provided inside the opening 6 on the back side. There are provided a plurality of shelves 9 projecting into the space defined. Each of these shelves 9 has the same width in the width direction of the first sub-frame 3 and the opening 6 of the main frame 2.
It has a sufficient length from the side to the depth direction, and has a slight protrusion 9a on the end face on the depth side as shown in FIG.
Between the upper end of the projection 9a and the outer plate 3a of the first sub-frame 3, there is provided a stopper 10 for fastening a wiring member or a piping member placed on each of the shelves 9. . Also,
The stopper 10 is also provided on the projecting portion 3c corresponding to the lowermost stage, and can sort and lock wiring members and piping members placed on each shelf 9 including the projecting portion 3c.

Next, a second subframe 11 as a modification of the first subframe 3 will be described. As shown in FIG. 4, the second sub-frame 11 is a frame used, for example, when the photoelectric sensor 12 is mounted on the upper side 2Ra of the main frame 2R. The second sub-frame 11 is provided above the first sub-frame 3. The cover 13 is provided integrally with the expression sensor 12. The cover portion 13 has an opening at an end surface on the support roller 4 side and a surface placed on the upper side portion 2Ra, and the both side surfaces and the outer plate 11a on the upper surface are extended downward, so that the first sub-frame 3 is extended. Is connected to the outer side plate 3a. On the side of the second sub-frame 11 facing the opening 6, upper and lower projecting portions 11b and 11c are provided, respectively.
1b is provided with an upper engaging portion 8 so that the main frame 2R
Of the lower part 2Rc. A lower engaging portion 7 is provided below the protruding portion 11c provided below, and the folded portion 2Rd of the main frame 2R is provided.
Is adapted to be engaged. Further, at the position facing the opening 6 of the second sub-frame 11, a plurality of shelves 9 similar to those provided in the first sub-frame 3 are provided, and a plurality of shelves 9 are provided.
Wiring and piping can be accommodated on the shelf by the stopper 10 provided on the shelf 9 and the projecting portion 11c. Although the above-described second sub-frame 11 has been described as a frame for the photoelectric sensor 12, not only the photoelectric sensor 12 but also other accessories attached to the main frames 2 </ b> L and 2 </ b> R have the shape of the cover 13. Can be dealt with simply by changing

Each of the first sub-frame 3 and the second sub-frame 11 described above may be an integrally molded product of synthetic resin or a processed product made of a light metal material, and may be any position of the opening 6 provided in the main frame 2. Can be appropriately increased or decreased according to the attachment state of the wiring member or the piping member. Further, since the subframe of the relevant portion can be easily removed even during maintenance and inspection, there is a feature that the operation is facilitated. Further, since these sub-frames can also cover exposed portions such as bolts and nuts in the opening 6, the sub-frame can be used as a preferable conveyor frame from the appearance of the conveyor.

[0015]

As described in detail above, the conveyor frame of the present invention comprises a main frame having an opening on the outer surface along the conveying direction, and a first sub-frame detachably attached to the opening. A shelf protruding into the opening inside the first sub-frame is provided to accommodate wiring and piping, etc., and when there is a projection such as a photoelectric sensor on the main frame, the cover is removed. Since the second sub-frame is mounted on the conveyor, it is possible to sort and support the wiring and piping of the conveyor with a simple structure, protect the projections on the conveyor, and make the appearance of the conveyor a preferable configuration. In addition, there is an effect that maintenance management becomes easy.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a conveyor frame according to an embodiment of the present invention.

FIG. 2 is a side view of the conveyor frame of FIG.

FIG. 3 is a perspective view of a first sub-frame used for the conveyor frame of FIG. 1;

FIG. 4 is a perspective view of a second sub-frame attached to the main frame of FIG. 1;

FIG. 5 is a front view and a side view of a conventional conveyor frame.

FIG. 6 is a front view and a side view of another conveyor frame of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor frame 2 Main frame 2La, 2Ra Upper side 2Lb, 2Rb Lower side 2Lc, 2Rc Folding down 2Ld, 2Rd Folding up 3 First subframe 3a Outer plates 3b, 3c Projecting 4 Supporting roller 6 Opening 7 Lower Engaging part 8 Upper engaging part 9 Shelf part 10 Stopper 11 Second subframe 12 Photoelectric sensor 13 Cover part

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-272011 (JP, A) JP-A-6-14125 (JP, A) JP-A-6-127652 (JP, A) JP-A-5-127 186019 (JP, A) JP-A-63-143014 (JP, A) JP-A-3-108398 (JP, A) JP-A-63-88614 (JP, U) JP-A-4-58037 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65G 21/02 B65G 21/06 H05K 7/02 H02G 3/04 H02G 3/26

Claims (2)

(57) [Claims] 1. A plurality of support rollers (4) are rotatably supported on an upper part of a conveyed object along a conveying path of the conveyed object at a predetermined interval, and are rotatably supported on an upper part thereof. A main frame (2) having a C-shaped cross section provided with an opening (6) opened along the upper surface, and an upper engagement engaging with an upper side and a lower side of the opening (6) of the main frame (2). And a lower engaging portion (7), between which the upper and lower engaging portions protrude into the opening (6), and connect the wiring and the piping to be loaded into the main frame (2). Multi-stage shelves to be placed and accommodated (9)
And a first sub-frame (3) which is detachably disposed at an arbitrary interval along a transport direction of the opening (6) and comprises a first sub-frame (3). ). 2. Conveyor frame (1) according to claim 1,
In place of the first sub-frame (3),
A cover portion (13) for covering and protecting a projection such as a photoelectric sensor (12) provided above a transport surface formed by the support roller (4) on the upper side of the main frame (2).
Conveyor frame (1), characterized in that a second sub-frame (11) having an integral structure is provided.